The pilot reported trouble with engine number four but the plane shown taking off had only two engines.
After the mission, when Ferrar (John Colicos) leaves the caves he surveys the beach - first to his left then to his right. The shot is the same in both directions, only the right view is the reverse of the left.
Jim asks Barney if he has renewed his pilot's license. Pilot's licenses do not expire. The individual must keep current medical and flight experience. Jim should have asked if he is current.
The Spanish phrase on the sign "LINAS AEREAS DE CARIBE" should read "LINEAS AEREAS DEL CARIBE".
Just after Paris drives the ambulance away, huge filming lights can be seen reflected in the side of the ambulance.